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Author SHA1 Message Date
Dan Gohman
7a5cb984e6 Fix this debug output to handle the case where the loop has been deleted. 
llvm-svn: 82994
 2009-09-28 15:40:01 +00:00
Dan Gohman
aade5fefdb Include the name of the loop header in debug messages. 
llvm-svn: 82993
 2009-09-28 15:07:18 +00:00
Dan Gohman
9776ad2192 Remove a redundant #ifndef and add an assertion string. 
llvm-svn: 82991
 2009-09-28 14:38:19 +00:00
Dan Gohman
f31dae3931 Convert LoopSimplify and LoopExtractor from FunctionPass to LoopPass. 
llvm-svn: 82990
 2009-09-28 14:37:51 +00:00
Bob Wilson
bbcf30c05c Pass the optimization level when constructing the ARM instruction selector. 
Otherwise, it is always set to "default", which prevents debug info from
even being generated during isel.  Radar 7250345.

llvm-svn: 82988
 2009-09-28 14:30:20 +00:00
Evan Cheng
54a1a87862 Make ARM and Thumb2 32-bit immediate materialization into a single 32-bit pseudo 
instruction. This makes it re-materializable.

Thumb2 will split it back out into two instructions so IT pass will generate the
right mask. Also, this expose opportunies to optimize the movw to a 16-bit move.

llvm-svn: 82982
 2009-09-28 09:14:39 +00:00
Daniel Dunbar
92fcc49c24 Don't traverse into .svn directories. 
llvm-svn: 82978
 2009-09-28 07:32:45 +00:00
Anton Korobeynikov
2e54b03741 Fix thinko in my recent movt commit: it's not safe to remat movt, since it has input reg argument. 
Disable rematting of it for now.

llvm-svn: 82975
 2009-09-28 07:26:46 +00:00
Chris Lattner
d77fb17b28 The select instruction is not neccesarily in the same block as the 
phi nodes.  Make sure to phi translate from the right block. 

This fixes a llvm-building-llvm failure on GVN-PRE.cpp

llvm-svn: 82970
 2009-09-28 06:49:44 +00:00
Evan Cheng
ddc8678b00 Coalescer should not delete extract_subreg, insert_subreg, and subreg_to_reg of 
physical registers. This is especially critical for the later two since they
start the live interval of a super-register. e.g.
%DO<def> = INSERT_SUBREG %D0<undef>, %S0<kill>, 1
If this instruction is eliminated, the register scavenger will not be happy as
D0 is not defined previously.
This fixes PR5055.

llvm-svn: 82968
 2009-09-28 05:28:43 +00:00
Erick Tryzelaar
f807989d4d Document a bug in the ocaml bindings has wrong linkage values. 
llvm-svn: 82966
 2009-09-28 04:42:55 +00:00
Erick Tryzelaar
e59452b328 Expose the rest of the attribute settings. 
llvm-svn: 82965
 2009-09-28 04:42:47 +00:00
Erick Tryzelaar
9212efe029 Fix a bug in ocaml bindings that has incorrect linkage options. 
llvm-svn: 82964
 2009-09-28 04:42:36 +00:00
Mikhail Glushenkov
d020f235d5 Regenerate. 
llvm-svn: 82958
 2009-09-28 01:28:26 +00:00
Mikhail Glushenkov
b676fc15a0 Add a way to query the number of input files. 
llvm-svn: 82957
 2009-09-28 01:16:42 +00:00
Mikhail Glushenkov
251988b823 Document the 'not' combinator. 
llvm-svn: 82956
 2009-09-28 01:16:07 +00:00
Mikhail Glushenkov
ef0b5e2f1a A bit prettier formatting. 
llvm-svn: 82955
 2009-09-28 01:15:44 +00:00
Dan Gohman
584645dfe8 Remove temporary debugging hack. 
llvm-svn: 82953
 2009-09-28 00:44:15 +00:00
Dan Gohman
bd50ec69e4 Move the dominator verification code out of special code embedded within 
the PassManager code into a regular verifyAnalysis method.

Also, reorganize loop verification. Make the LoopPass infrastructure
call verifyLoop as needed instead of having LoopInfo::verifyAnalysis
check every loop in the function after each looop pass. Add a new
command-line argument, -verify-loop-info, to enable the expensive
full checking.

llvm-svn: 82952
 2009-09-28 00:27:48 +00:00
Dan Gohman
195c5bdf41 Move this assert to check the condition as soon as it is known. 
llvm-svn: 82951
 2009-09-28 00:10:28 +00:00
Dan Gohman
09f5f7f190 Extend the StartPassTimer and StopPassTimer functions so that the 
code that stops the timer doesn't have to search to find the timer
object before it stops the timer. This avoids a lock acquisition
and a few other things done with the timer running.

llvm-svn: 82949
 2009-09-28 00:07:05 +00:00
Anton Korobeynikov
189ce11684 Use movt/movw pair to materialize 32 bit constants on ARMv6T2+. 
This should be better than single load from constpool.

llvm-svn: 82948
 2009-09-27 23:52:58 +00:00
Dan Gohman
000a17774e Fix an old copy+pasto. 
llvm-svn: 82947
 2009-09-27 23:52:07 +00:00
Dan Gohman
db89691ec4 Extract the code for inserting a loop into the loop queue into 
a separate function.

llvm-svn: 82946
 2009-09-27 23:49:43 +00:00
Dan Gohman
0ea6efde4e When a loop is deleted, immediately release all of the active 
LoopPasses for that loop. This avoids trouble with the PassManager
trying to call verifyAnalysis on them, and frees up some memory
sooner rather than later.

llvm-svn: 82945
 2009-09-27 23:43:07 +00:00
Dan Gohman
fdd9a2ee96 Extract the code for releasing a pass into a separate function, and 
tidy it up a little.

llvm-svn: 82944
 2009-09-27 23:38:27 +00:00
Nick Lewycky
04cea17209 Remove the "metadata*" type and simplify the code it complicated. This was only 
used to support GlobalVariables storing MDNodes, back when they were derived
from Constant before the introduction of NamedMDNode, but never removed.

llvm-svn: 82943
 2009-09-27 23:27:42 +00:00
Dan Gohman
cd2dd6b7e6 LBRX no longer has an explicit SrcValueSDNode operand, so the type 
operand is now at index 2, rather than 3. This fixes the
"Invalid child # of SDNode!" failures on PowerPC.

llvm-svn: 82942
 2009-09-27 23:17:47 +00:00
Chris Lattner
2a85cfd972 simplify some code. 
llvm-svn: 82936
 2009-09-27 21:46:50 +00:00
Chris Lattner
75a5d76294 The bitcast case is not needed here: instcombine turns icmp(bitcast(x), null) -> icmp(x, null) already. 
llvm-svn: 82935
 2009-09-27 21:42:46 +00:00
Nick Lewycky
6057c1a998 New unit test for the cloning module, which so far only covers cloning of 
instructions' optimization flags.

llvm-svn: 82934
 2009-09-27 21:39:46 +00:00
Chris Lattner
e024fd6b47 calls are already unmovable, malloc doesn't need a special case. 
llvm-svn: 82933
 2009-09-27 21:36:19 +00:00
Chris Lattner
8a77e8b353 calls to external functions are already marked overdefined, special casing 
malloc isn't needed.

llvm-svn: 82932
 2009-09-27 21:35:11 +00:00
Chris Lattner
bb29bb4e16 calls are already handled, malloc doesn't need a special case. 
llvm-svn: 82931
 2009-09-27 21:33:46 +00:00
Nick Lewycky
81504d2150 Round out the API for the new optimization flags. 
llvm-svn: 82930
 2009-09-27 21:33:04 +00:00
Chris Lattner
24af6de20a calls are rejected above, no need to special case malloc here. 
llvm-svn: 82929
 2009-09-27 21:31:39 +00:00
Chris Lattner
0cfb82cf8c remove special handling of bitcast(malloc), it will be handled 
when the loop inspects the bitcast operand.

llvm-svn: 82928
 2009-09-27 21:29:28 +00:00
Chris Lattner
3f320467b5 unlike the malloc instruction, "malloc" calls do not claim to be readonly, just nounwind. 
llvm-svn: 82927
 2009-09-27 21:23:38 +00:00
Chris Lattner
4ab9414b7c add a new DirectiveMap stringmap, which allows more efficient dispatching 
to directive handlers and allows for easier extensibility.

I only switched a few over for now.

llvm-svn: 82926
 2009-09-27 21:16:52 +00:00
Nick Lewycky
171d7954c3 Link order: it matters. 
llvm-svn: 82925
 2009-09-27 20:58:01 +00:00
Chris Lattner
7a9e470ddc allow pushing icmps through phis with multiple uses and across critical edges. 
These are important to push up to encourage jump threading.  This shrinks 176.gcc a bit.

llvm-svn: 82923
 2009-09-27 20:46:36 +00:00
Chris Lattner
f7db1f1a3a Enhance the previous fix for PR4895 to allow more values than just 
simple constants for the true/false value of the select.  We now
do phi translation etc.  This really fixes PR4895 :)

llvm-svn: 82917
 2009-09-27 20:18:49 +00:00
Chris Lattner
0af7f0ceaf implement PR4895, by making FoldOpIntoPhi handle select conditions 
that are phi nodes.  Also tighten up FoldOpIntoPhi to treat constantexpr
operands to phis just like other variables, avoiding moving constantexpr
computations around.

Patch by Daniel Dunbar.

llvm-svn: 82913
 2009-09-27 19:57:57 +00:00
Chris Lattner
80349d5875 avoid copying MCAsmInfo by value, add an (extremely low prio) fixme. 
llvm-svn: 82911
 2009-09-27 19:38:39 +00:00
Tilmann Scheller
a23802520a Use explicit structs instead of std::pair to map callee saved regs to spill slots. 
llvm-svn: 82909
 2009-09-27 17:58:47 +00:00
Dan Gohman
2d607af763 Delete a bogus comment. 
llvm-svn: 82908
 2009-09-27 17:50:44 +00:00
Dan Gohman
89b2635c5c Remove a redundant assert. 
llvm-svn: 82907
 2009-09-27 17:48:37 +00:00
Jeffrey Yasskin
195b24c844 Enable -g with DEBUG_SYMBOLS and --enable-debug-symbols instead of 
DEBUG_RUNTIME.

llvm-svn: 82906
 2009-09-27 17:47:29 +00:00
Dan Gohman
8b4c141d97 Fix SCEVExpander's canonical addrec expansion code to work on loops that 
aren't in canonical loop-simplify form, since it doesn't itself depend
on LoopSimplify. This means handling loops without preheaders and loops
with multiple backedges.

llvm-svn: 82905
 2009-09-27 17:46:40 +00:00
Dan Gohman
3248b82ffc Add dominates and releaseMemory member functions to PostDominatorTree. 
llvm-svn: 82904
 2009-09-27 17:39:12 +00:00